# ai_scanner.cpp

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    00001 /* $Id: ai_scanner.cpp 15630 2009-03-06 15:20:18Z yexo $ */
    00002
    00005 #include "../stdafx.h"
    00006 #include "../debug.h"
    00007 #include "../string_func.h"
    00008 #include "../fileio_func.h"
    00009 #include "../fios.h"
    00010 #include "../network/network.h"
    00011 #include "../core/random_func.hpp"
    00012 #include <sys/stat.h>
    00013
    00014 #include <squirrel.h>
    00015 #include "../script/squirrel.hpp"
    00016 #include "../script/squirrel_helper.hpp"
    00017 #include "../script/squirrel_class.hpp"
    00018 #include "ai.hpp"
    00019 #include "ai_info.hpp"
    00020 #include "ai_scanner.hpp"
    00021 #include "api/ai_controller.hpp"
    00022
    00023 void AIScanner::ScanDir(const char *dirname, bool library_scan, bool library_recursive)
    00024 {
    00025   extern bool FiosIsValidFile(const char *path, const struct dirent *ent, struct stat *sb);
    00026   extern bool FiosIsHiddenFile(const struct dirent *ent);
    00027
    00028   char d_name[MAX_PATH];
    00029   char temp_script[1024];
    00030   struct stat sb;
    00031   struct dirent *dirent;
    00032   DIR *dir;
    00033
    00034   dir = ttd_opendir(dirname);
    00035   /* Dir not found, so do nothing */
    00036   if (dir == NULL) return;
    00037
    00038   /* Walk all dirs trying to find a dir in which 'main.nut' exists */
    00039   while ((dirent = readdir(dir)) != NULL) {
    00040     ttd_strlcpy(d_name, FS2OTTD(dirent->d_name), sizeof(d_name));
    00041
    00042     /* Valid file, not '.' or '..', not hidden */
    00043     if (!FiosIsValidFile(dirname, dirent, &sb)) continue;
    00044     if (strcmp(d_name, ".") == 0 || strcmp(d_name, "..") == 0) continue;
    00045     if (FiosIsHiddenFile(dirent) && strncasecmp(d_name, PERSONAL_DIR, strlen(d_name)) != 0) continue;
    00046
    00047     /* Create the full length dirname */
    00048     ttd_strlcpy(temp_script, dirname, sizeof(temp_script));
    00049     ttd_strlcat(temp_script, d_name,  sizeof(temp_script));
    00050
    00051     if (S_ISDIR(sb.st_mode)) {
    00052       /* Libraries are always in a subdirectory of their category, so scan those */
    00053       if (library_scan && !library_recursive) {
    00054         ttd_strlcat(temp_script, PATHSEP, sizeof(temp_script));
    00055         ScanDir(temp_script, library_scan, true);
    00056         continue;
    00057       }
    00058     } else if (S_ISREG(sb.st_mode)) {
    00059       /* Only .tar files are allowed */
    00060       char *ext = strrchr(d_name, '.');
    00061       if (ext == NULL || strcasecmp(ext, ".tar") != 0) continue;
    00062       /* .tar files are only allowed in the root of the library dir */
    00063       if (library_recursive) continue;
    00064
    00065       /* We always expect a directory in the TAR */
    00066       const char *first_dir = FioTarFirstDir(temp_script);
    00067       if (first_dir == NULL) continue;
    00068
    00069       ttd_strlcat(temp_script, PATHSEP, sizeof(temp_script));
    00070       ttd_strlcat(temp_script, first_dir, sizeof(temp_script));
    00071       FioTarAddLink(temp_script, first_dir);
    00072     } else {
    00073       /* Skip any other type of file */
    00074       continue;
    00075     }
    00076
    00077     /* Add an additional / where needed */
    00078     if (temp_script[strlen(temp_script) - 1] != PATHSEPCHAR) ttd_strlcat(temp_script, PATHSEP, sizeof(temp_script));
    00079
    00080     if (!library_scan) {
    00081       char info_script[MAX_PATH];
    00082       ttd_strlcpy(info_script, temp_script, sizeof(info_script));
    00083       ttd_strlcpy(main_script, temp_script, sizeof(main_script));
    00084
    00085       /* Every AI should contain an 'info.nut' and 'main.nut' file; else it is not a valid AI */
    00086       ttd_strlcat(info_script, "info.nut", sizeof(info_script));
    00087       ttd_strlcat(main_script, "main.nut", sizeof(main_script));
    00088       if (!FioCheckFileExists(info_script, AI_DIR) || !FioCheckFileExists(main_script, AI_DIR)) continue;
    00089
    00090       DEBUG(ai, 6, "Loading AI at location '%s'", main_script);
    00091       /* We don't care if one of the other scripst failed to load. */
    00092       this->engine->ResetCrashed();
    00093       this->engine->LoadScript(info_script);
    00094     } else {
    00095       char library_script[MAX_PATH];
    00096       ttd_strlcpy(library_script, temp_script, sizeof(library_script));
    00097       ttd_strlcpy(main_script, temp_script, sizeof(main_script));
    00098
    00099       /* Every library should contain an 'library.nut' and 'main.nut' file; else it is not a valid library */
    00100       ttd_strlcat(library_script, "library.nut", sizeof(library_script));
    00101       ttd_strlcat(main_script, "main.nut", sizeof(main_script));
    00102       if (!FioCheckFileExists(library_script, AI_LIBRARY_DIR) || !FioCheckFileExists(main_script, AI_LIBRARY_DIR)) continue;
    00103
    00104       DEBUG(ai, 6, "Loading AI Library at location '%s'", main_script);
    00105       /* We don't care if one of the other scripst failed to load. */
    00106       this->engine->ResetCrashed();
    00107       this->engine->LoadScript(library_script);
    00108     }
    00109   }
    00110   closedir(dir);
    00111 }
    00112
    00113 void AIScanner::ScanAIDir()
    00114 {
    00115   char buf[MAX_PATH];
    00116   Searchpath sp;
    00117
    00118   extern void ScanForTarFiles();
    00119   ScanForTarFiles();
    00120
    00121   FOR_ALL_SEARCHPATHS(sp) {
    00122     FioAppendDirectory(buf, MAX_PATH, sp, AI_DIR);
    00123     if (FileExists(buf)) this->ScanDir(buf, false);
    00124     FioAppendDirectory(buf, MAX_PATH, sp, AI_LIBRARY_DIR);
    00125     if (FileExists(buf)) this->ScanDir(buf, true);
    00126   }
    00127 }
    00128
    00129 void AIScanner::RescanAIDir()
    00130 {
    00131   this->ScanAIDir();
    00132 }
    00133
    00134 AIScanner::AIScanner() :
    00135   info_dummy(NULL)
    00136 {
    00137   this->engine = new Squirrel();
    00138   this->main_script[0] = '\0';
    00139
    00140   /* Create the AIInfo class, and add the RegisterAI function */
    00141   DefSQClass <AIInfo> SQAIInfo("AIInfo");
    00142   SQAIInfo.PreRegister(engine);
    00143   SQAIInfo.AddConstructor<void (AIInfo::*)(), 1>(engine, "x");
    00144   SQAIInfo.DefSQAdvancedMethod(this->engine, &AIInfo::AddSetting, "AddSetting");
    00145   SQAIInfo.DefSQAdvancedMethod(this->engine, &AIInfo::AddLabels, "AddLabels");
    00146   SQAIInfo.DefSQConst(engine, AICONFIG_RANDOM, "AICONFIG_RANDOM");
    00147   SQAIInfo.DefSQConst(engine, AICONFIG_BOOLEAN, "AICONFIG_BOOLEAN");
    00148   SQAIInfo.PostRegister(engine);
    00149   this->engine->AddMethod("RegisterAI", &AIInfo::Constructor, 2, "tx");
    00150   this->engine->AddMethod("RegisterDummyAI", &AIInfo::DummyConstructor, 2, "tx");
    00151
    00152   /* Create the AILibrary class, and add the RegisterLibrary function */
    00153   this->engine->AddClassBegin("AILibrary");
    00154   this->engine->AddClassEnd();
    00155   this->engine->AddMethod("RegisterLibrary", &AILibrary::Constructor, 2, "tx");
    00156
    00157   /* Mark this class as global pointer */
    00158   this->engine->SetGlobalPointer(this);
    00159
    00160   /* Scan the AI dir for scripts */
    00161   this->ScanAIDir();
    00162
    00163   /* Create the dummy AI */
    00164   this->engine->ResetCrashed();
    00165   strcpy(this->main_script, "%_dummy");
    00166   extern void AI_CreateAIInfoDummy(HSQUIRRELVM vm);
    00167   AI_CreateAIInfoDummy(this->engine->GetVM());
    00168 }
    00169
    00170 AIScanner::~AIScanner()
    00171 {
    00172   AIInfoList::iterator it = this->info_list.begin();
    00173   for (; it != this->info_list.end(); it++) {
    00174     free((void *)(*it).first);
    00175     delete (*it).second;
    00176   }
    00177   it = this->info_single_list.begin();
    00178   for (; it != this->info_single_list.end(); it++) {
    00179     free((void *)(*it).first);
    00180   }
    00181   AILibraryList::iterator lit = this->library_list.begin();
    00182   for (; lit != this->library_list.end(); lit++) {
    00183     free((void *)(*lit).first);
    00184     delete (*lit).second;
    00185   }
    00186
    00187   delete this->info_dummy;
    00188   delete this->engine;
    00189 }
    00190
    00191 bool AIScanner::ImportLibrary(const char *library, const char *class_name, int version, HSQUIRRELVM vm, AIController *controller)
    00192 {
    00193   /* Internally we store libraries as 'library.version' */
    00194   char library_name[1024];
    00195   snprintf(library_name, sizeof(library_name), "%s.%d", library, version);
    00196   strtolower(library_name);
    00197
    00198   /* Check if the library + version exists */
    00199   AILibraryList::iterator iter = this->library_list.find(library_name);
    00200   if (iter == this->library_list.end()) {
    00201     char error[1024];
    00202
    00203     /* Now see if the version doesn't exist, or the library */
    00204     iter = this->library_list.find(library);
    00205     if (iter == this->library_list.end()) {
    00206       snprintf(error, sizeof(error), "couldn't find library '%s'", library);
    00207     } else {
    00208       snprintf(error, sizeof(error), "couldn't find library '%s' version %d. The latest version available is %d", library, version, (*iter).second->GetVersion());
    00209     }
    00210     sq_throwerror(vm, OTTD2FS(error));
    00211     return false;
    00212   }
    00213
    00214   /* Get the current table/class we belong to */
    00215   HSQOBJECT parent;
    00216   sq_getstackobj(vm, 1, &parent);
    00217
    00218   char fake_class[1024];
    00219   int next_number;
    00220
    00221   if (!controller->LoadedLibrary(library_name, &next_number, &fake_class[0], sizeof(fake_class))) {
    00222     /* Create a new fake internal name */
    00223     snprintf(fake_class, sizeof(fake_class), "_internalNA%d", next_number);
    00224
    00225     /* Load the library in a 'fake' namespace, so we can link it to the name the user requested */
    00226     sq_pushroottable(vm);
    00227     sq_pushstring(vm, OTTD2FS(fake_class), -1);
    00228     sq_newclass(vm, SQFalse);
    00229     /* Load the library */
    00230     if (!Squirrel::LoadScript(vm, (*iter).second->GetMainScript(), false)) {
    00231       char error[1024];
    00232       snprintf(error, sizeof(error), "there was a compile error when importing '%s' version %d", library, version);
    00233       sq_throwerror(vm, OTTD2FS(error));
    00234       return false;
    00235     }
    00236     /* Create the fake class */
    00237     sq_newslot(vm, -3, SQFalse);
    00238     sq_pop(vm, 1);
    00239
    00240     controller->AddLoadedLibrary(library_name, fake_class);
    00241   }
    00242
    00243   /* Find the real class inside the fake class (like 'sets.Vector') */
    00244   sq_pushroottable(vm);
    00245   sq_pushstring(vm, OTTD2FS(fake_class), -1);
    00246   if (SQ_FAILED(sq_get(vm, -2))) {
    00247     sq_throwerror(vm, _SC("internal error assigning library class"));
    00248     return false;
    00249   }
    00250   sq_pushstring(vm, OTTD2FS((*iter).second->GetInstanceName()), -1);
    00251   if (SQ_FAILED(sq_get(vm, -2))) {
    00252     char error[1024];
    00253     snprintf(error, sizeof(error), "unable to find class '%s' in the library '%s' version %d", (*iter).second->GetInstanceName(), library, version);
    00254     sq_throwerror(vm, OTTD2FS(error));
    00255     return false;
    00256   }
    00257   HSQOBJECT obj;
    00258   sq_getstackobj(vm, -1, &obj);
    00259   sq_pop(vm, 3);
    00260
    00261   if (StrEmpty(class_name)) {
    00262     sq_pushobject(vm, obj);
    00263     return true;
    00264   }
    00265
    00266   /* Now link the name the user wanted to our 'fake' class */
    00267   sq_pushobject(vm, parent);
    00268   sq_pushstring(vm, OTTD2FS(class_name), -1);
    00269   sq_pushobject(vm, obj);
    00270   sq_newclass(vm, SQTrue);
    00271   sq_newslot(vm, -3, SQFalse);
    00272   sq_pop(vm, 1);
    00273
    00274   sq_pushobject(vm, obj);
    00275   return true;
    00276 }
    00277
    00278 void AIScanner::RegisterLibrary(AILibrary *library)
    00279 {
    00280   char library_name[1024];
    00281   snprintf(library_name, sizeof(library_name), "%s.%s.%d", library->GetCategory(), library->GetInstanceName(), library->GetVersion());
    00282   strtolower(library_name);
    00283
    00284   if (this->library_list.find(library_name) != this->library_list.end()) {
    00285     /* This AI was already registered */
    00286 #ifdef WIN32
    00287     /* Windows doesn't care about the case */
    00288     if (strcasecmp(this->library_list[library_name]->GetMainScript(), library->GetMainScript()) == 0) {
    00289 #else
    00290     if (strcmp(this->library_list[library_name]->GetMainScript(), library->GetMainScript()) == 0) {
    00291 #endif
    00292       delete library;
    00293       return;
    00294     }
    00295
    00296     DEBUG(ai, 0, "Registering two libraries with the same name and version");
    00297     DEBUG(ai, 0, "  1: %s", this->library_list[library_name]->GetMainScript());
    00298     DEBUG(ai, 0, "  2: %s", library->GetMainScript());
    00299     DEBUG(ai, 0, "The first is taking precedence.");
    00300
    00301     delete library;
    00302     return;
    00303   }
    00304
    00305   this->library_list[strdup(library_name)] = library;
    00306 }
    00307
    00308 void AIScanner::RegisterAI(AIInfo *info)
    00309 {
    00310   char ai_name[1024];
    00311   snprintf(ai_name, sizeof(ai_name), "%s.%d", info->GetName(), info->GetVersion());
    00312   strtolower(ai_name);
    00313
    00314   /* Check if GetShortName follows the rules */
    00315   if (strlen(info->GetShortName()) != 4) {
    00316     DEBUG(ai, 0, "The AI '%s' returned a string from GetShortName() which is not four characaters. Unable to load the AI.", info->GetName());
    00317     delete info;
    00318     return;
    00319   }
    00320
    00321   if (this->info_list.find(ai_name) != this->info_list.end()) {
    00322     /* This AI was already registered */
    00323 #ifdef WIN32
    00324     /* Windows doesn't care about the case */
    00325     if (strcasecmp(this->info_list[ai_name]->GetMainScript(), info->GetMainScript()) == 0) {
    00326 #else
    00327     if (strcmp(this->info_list[ai_name]->GetMainScript(), info->GetMainScript()) == 0) {
    00328 #endif
    00329       delete info;
    00330       return;
    00331     }
    00332
    00333     DEBUG(ai, 0, "Registering two AIs with the same name and version");
    00334     DEBUG(ai, 0, "  1: %s", this->info_list[ai_name]->GetMainScript());
    00335     DEBUG(ai, 0, "  2: %s", info->GetMainScript());
    00336     DEBUG(ai, 0, "The first is taking precedence.");
    00337
    00338     delete info;
    00339     return;
    00340   }
    00341
    00342   this->info_list[strdup(ai_name)] = info;
    00343
    00344   /* Add the AI to the 'unique' AI list, where only the highest version of the
    00345    *  AI is registered. */
    00346   snprintf(ai_name, sizeof(ai_name), "%s", info->GetName());
    00347   strtolower(ai_name);
    00348   if (this->info_single_list.find(ai_name) == this->info_single_list.end()) {
    00349     this->info_single_list[strdup(ai_name)] = info;
    00350   } else if (this->info_single_list[ai_name]->GetVersion() < info->GetVersion()) {
    00351     this->info_single_list[ai_name] = info;
    00352   }
    00353 }
    00354
    00355 AIInfo *AIScanner::SelectRandomAI()
    00356 {
    00357   if (this->info_single_list.size() == 0) {
    00358     DEBUG(ai, 0, "No suitable AI found, loading 'dummy' AI.");
    00359     return this->info_dummy;
    00360   }
    00361
    00362   /* Find a random AI */
    00363   uint pos;
    00364   if (_networking) pos = InteractiveRandomRange((uint16)this->info_single_list.size());
    00365   else             pos =            RandomRange((uint16)this->info_single_list.size());
    00366
    00367   /* Find the Nth item from the array */
    00368   AIInfoList::iterator it = this->info_single_list.begin();
    00369   for (; pos > 0; pos--) it++;
    00370   AIInfoList::iterator first_it = it;
    00371   return (*it).second;
    00372 }
    00373
    00374 AIInfo *AIScanner::FindInfo(const char *nameParam, int versionParam)
    00375 {
    00376   if (this->info_list.size() == 0) return NULL;
    00377   if (nameParam == NULL) return NULL;
    00378
    00379   char ai_name[1024];
    00380   ttd_strlcpy(ai_name, nameParam, sizeof(ai_name));
    00381   strtolower(ai_name);
    00382
    00383   AIInfo *info = NULL;
    00384   int version = -1;
    00385
    00386   if (versionParam == -1) {
    00387     /* We want to load the latest version of this AI; so find it */
    00388     if (this->info_single_list.find(ai_name) != this->info_single_list.end()) return this->info_single_list[ai_name];
    00389
    00390     /* If we didn't find a match AI, maybe the user included a version */
    00391     char *e = strrchr(ai_name, '.');
    00392     if (e == NULL) return NULL;
    00393     *e = '\0';
    00394     e++;
    00395     versionParam = atoi(e);
    00396     /* Fall-through, like we were calling this function with a version */
    00397   }
    00398
    00399   /* Try to find a direct 'name.version' match */
    00400   char ai_name_tmp[1024];
    00401   snprintf(ai_name_tmp, sizeof(ai_name_tmp), "%s.%d", ai_name, versionParam);
    00402   strtolower(ai_name_tmp);
    00403   if (this->info_list.find(ai_name_tmp) != this->info_list.end()) return this->info_list[ai_name_tmp];
    00404
    00405   /* See if there is a compatible AI which goes by that name, with the highest
    00406    *  version which allows loading the requested version */
    00407   AIInfoList::iterator it = this->info_list.begin();
    00408   for (; it != this->info_list.end(); it++) {
    00409     char ai_name_compare[1024];
    00410     snprintf(ai_name_compare, sizeof(ai_name_compare), "%s", (*it).second->GetName());
    00411     strtolower(ai_name_compare);
    00412
    00413     if (strcasecmp(ai_name, ai_name_compare) == 0 && (*it).second->CanLoadFromVersion(versionParam)) {
    00414       version = (*it).second->GetVersion();
    00415       info = (*it).second;
    00416     }
    00417   }
    00418
    00419   return info;
    00420 }
    00421
    00422 char *AIScanner::GetAIConsoleList(char *p, const char *last)
    00423 {
    00424   p += seprintf(p, last, "List of AIs:\n");
    00425   AIInfoList::iterator it = this->info_list.begin();
    00426   for (; it != this->info_list.end(); it++) {
    00427     AIInfo *i = (*it).second;
    00428     p += seprintf(p, last, "%10s (v%d): %s\n", i->GetName(), i->GetVersion(), i->GetDescription());
    00429   }
    00430   p += seprintf(p, last, "\n");
    00431
    00432   return p;
    00433 }
    00434
    00435 #if defined(ENABLE_NETWORK)
    00436 #include "../network/network_content.h"
    00437 #include "../md5.h"
    00438 #include "../tar_type.h"
    00439
    00441 struct AIFileChecksumCreator : FileScanner {
    00442   byte md5sum[16];
    00443
    00448   AIFileChecksumCreator()
    00449   {
    00450     memset(this->md5sum, 0, sizeof(this->md5sum));
    00451   }
    00452
    00453   /* Add the file and calculate the md5 sum. */
    00454   virtual bool AddFile(const char *filename, size_t basepath_length)
    00455   {
    00456     Md5 checksum;
    00457     uint8 buffer[1024];
    00458     size_t len, size;
    00459     byte tmp_md5sum[16];
    00460
    00461     /* Open the file ... */
    00462     FILE *f = FioFOpenFile(filename, "rb", DATA_DIR, &size);
    00463     if (f == NULL) return false;
    00464
    00465     /* ... calculate md5sum... */
    00466     while ((len = fread(buffer, 1, (size > sizeof(buffer)) ? sizeof(buffer) : size, f)) != 0 && size != 0) {
    00467       size -= len;
    00468       checksum.Append(buffer, len);
    00469     }
    00470     checksum.Finish(tmp_md5sum);
    00471
    00472     FioFCloseFile(f);
    00473
    00474     /* ... and xor it to the overall md5sum. */
    00475     for (uint i = 0; i < sizeof(md5sum); i++) this->md5sum[i] ^= tmp_md5sum[i];
    00476
    00477     return true;
    00478   }
    00479 };
    00480
    00489 static bool IsSameAI(const ContentInfo *ci, bool md5sum, AIFileInfo *info)
    00490 {
    00491   uint32 id = 0;
    00492   const char *str = info->GetShortName();
    00493   for (int j = 0; j < 4 && *str != '\0'; j++, str++) id |= *str << (8 * j);
    00494
    00495   if (id != ci->unique_id) return false;
    00496   if (!md5sum) return true;
    00497
    00498   AIFileChecksumCreator checksum;
    00499   char path[MAX_PATH];
    00500   strecpy(path, info->GetMainScript(), lastof(path));
    00501   /* There'll always be at least 2 path separator characters in an AI's
    00502    * main script name as the search algorithm requires the main script to
    00503    * be in a subdirectory of the AI directory; so ai/<path>/main.nut. */
    00504   *strrchr(path, PATHSEPCHAR) = '\0';
    00505   *strrchr(path, PATHSEPCHAR) = '\0';
    00506   TarList::iterator iter = _tar_list.find(path);
    00507
    00508   if (iter != _tar_list.end()) {
    00509     /* The main script is in a tar file, so find all files that
    00510      * are in the same tar and add them to the MD5 checksumming. */
    00511     TarFileList::iterator tar;
    00512     FOR_ALL_TARS(tar) {
    00513       /* Not in the same tar. */
    00514       if (tar->second.tar_filename != iter->first) continue;
    00515
    00516       /* Check the extension. */
    00517       const char *ext = strrchr(tar->first.c_str(), '.');
    00518       if (ext == NULL || strcasecmp(ext, ".nut") != 0) continue;
    00519
    00520       /* Create the full path name, */
    00521       seprintf(path, lastof(path), "%s%c%s", tar->second.tar_filename, PATHSEPCHAR, tar->first.c_str());
    00522       checksum.AddFile(path, 0);
    00523     }
    00524   } else {
    00525     /* Add the path sep char back when searching a directory, so we are
    00526      * in the actual directory. */
    00527     path[strlen(path)] = PATHSEPCHAR;
    00528     checksum.Scan(".nut", path);
    00529   }
    00530
    00531   return memcmp(ci->md5sum, checksum.md5sum, sizeof(ci->md5sum)) == 0;
    00532 }
    00533
    00540 bool AIScanner::HasAI(const ContentInfo *ci, bool md5sum)
    00541 {
    00542   switch (ci->type) {
    00543     case CONTENT_TYPE_AI:
    00544       for (AIInfoList::iterator it = this->info_list.begin(); it != this->info_list.end(); it++) {
    00545         if (IsSameAI(ci, md5sum, (*it).second)) return true;
    00546       }
    00547       return false;
    00548
    00549     case CONTENT_TYPE_AI_LIBRARY:
    00550       for (AILibraryList::iterator it = this->library_list.begin(); it != this->library_list.end(); it++) {
    00551         if (IsSameAI(ci, md5sum, (*it).second)) return true;
    00552       }
    00553       return false;
    00554
    00555     default:
    00556       NOT_REACHED();
    00557   }
    00558 }
    00559
    00566 /*static */ bool AI::HasAI(const ContentInfo *ci, bool md5sum)
    00567 {
    00568   return AI::ai_scanner->HasAI(ci, md5sum);
    00569 }
    00570
    00571 #endif /* ENABLE_NETWORK */